[qemu.git] / linux-user / sparc / target_syscall.h

#ifndef SPARC_TARGET_SYSCALL_H
#define SPARC_TARGET_SYSCALL_H

#include "target_errno.h"

struct target_pt_regs {
	abi_ulong psr;
	abi_ulong pc;
	abi_ulong npc;
	abi_ulong y;
	abi_ulong u_regs[16];
};

#define UNAME_MACHINE "sparc"
#define UNAME_MINIMUM_RELEASE "2.6.32"

/* SPARC kernels don't define this in their Kconfig, but they have the
 * same ABI as if they did, implemented by sparc-specific code which fishes
 * directly in the u_regs() struct for half the parameters in sparc_do_fork()
 * and copy_thread().
 */
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ      4096
#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
#define TARGET_MLOCKALL_MCL_FUTURE  0x4000

/* For SPARC SHMLBA is determined at runtime in the kernel, and
 * libc has to runtime-detect it using the hwcaps (see glibc
 * sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same
 * logic here, though we know we're not the sparc v9 64-bit case).
 */
#define TARGET_FORCE_SHMLBA

static inline abi_ulong target_shmlba(CPUSPARCState *env)
{
    if (!(env->def.features & CPU_FEATURE_FLUSH)) {
        return 64 * 1024;
    } else {
        return 256 * 1024;
    }
}

#endif /* SPARC_TARGET_SYSCALL_H */
Commit	Line	Data
3622634b MA	1	#ifndef SPARC_TARGET_SYSCALL_H
3622634b MA	2	#define SPARC_TARGET_SYSCALL_H
460c579f	3
05623849 LV	4	#include "target_errno.h"
05623849 LV	5
7a3f1944	6	struct target_pt_regs {
992f48a0 BS	7	abi_ulong psr;
	8	abi_ulong pc;
	9	abi_ulong npc;
	10	abi_ulong y;
	11	abi_ulong u_regs[16];
7a3f1944	12	};
cf720db3	13
9a93c152	14	#define UNAME_MACHINE "sparc"
cbc14e6f	15	#define UNAME_MINIMUM_RELEASE "2.6.32"
4ce6243d PM	16
	17	/* SPARC kernels don't define this in their Kconfig, but they have the
	18	* same ABI as if they did, implemented by sparc-specific code which fishes
	19	* directly in the u_regs() struct for half the parameters in sparc_do_fork()
	20	* and copy_thread().
	21	*/
	22	#define TARGET_CLONE_BACKWARDS
0903c8be	23	#define TARGET_MINSIGSTKSZ 4096
6f6a4032 TM	24	#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
6f6a4032 TM	25	#define TARGET_MLOCKALL_MCL_FUTURE 0x4000
460c579f	26
ee8e7614 PM	27	/* For SPARC SHMLBA is determined at runtime in the kernel, and
	28	* libc has to runtime-detect it using the hwcaps (see glibc
	29	* sysdeps/unix/sysv/linux/sparc/getshmlba; we follow the same
	30	* logic here, though we know we're not the sparc v9 64-bit case).
	31	*/
	32	#define TARGET_FORCE_SHMLBA
	33
	34	static inline abi_ulong target_shmlba(CPUSPARCState *env)
	35	{
576e1c4c	36	if (!(env->def.features & CPU_FEATURE_FLUSH)) {
ee8e7614 PM	37	return 64 * 1024;
	38	} else {
	39	return 256 * 1024;
	40	}
	41	}
	42
3622634b	43	#endif /* SPARC_TARGET_SYSCALL_H */